Portable power-driven machine for scrubbing, polishing, resurfacing, or otherwise treating floors



A g. 25; 1931. w G. om 1,820,482

PORTABLE POWER DRIVEN MAbHINE p011 SCRUBBING, POLISHING,

RESURFACING, OR OTHERWISE TREATING FLOORS Filed Aug. 18, 1927 2 Sheets-Sheet 1 JIMHZYIIKWIW w 1 m1 WWWWMWW INVENTOR WILLIAM G. ORTH Aug. 25, 1931. w. G. ORTH 1,820,482

PORTABLE POWER DRIVEN MACHINE FOR SCRUBBING, POLISHING, V RESURFACING, OR OTHERWISE TREATING FLOORS Filed Aug. 18, 1927 2 Sheets-Shoat 2 INVENTOR WILLIAM G. ORTH A TTORNEY I I i I I AIIIf g gai I I' I if I j i UN I-TlEiiD ATE f" r wrLLIAMe. 03 H, deuter um; N. v. V II 56mins rownR-Dmvmi- MAcnmE ron seizfiinme; ronrsriiiqe I I Application filed August 18, 1 92 7. Serial No. 2 1s,s24. I I I This inventionrelates to afloor scrubbing In practice thechamberformedin thej cas -x and polishing device andmore particularly c'1ng3' abov vgth w h 14j fin d ith to'a portable machine operated byan electric I 'oilor greaseand'to' avoid said-oilorgrease.

motor. 7 from reaching the brush :13 packing 21 and The principal object of the invention is to packing glands 22 are provided. :1 The lower -'5 if" if 1 provide a device of thisnature comprising 'shaftbearing 9'may bealso periodicallyoild: i r f a pair ofcircular scrubbing brushes arranged and to prevent the oil from"reaching th'e side by side and each being gear, driven by brush; anoil wretalner 21am the fOrm' Qfa' I the 11101301 shafts, I p i I leather orffelt placed the said v 10 Another: object of the invention is, to prolowerbearing in a d si fo d' the no 1 vide' animproved'and'novel means for conplate 12 a s .indicatediinsFigure 3. At the necting the said brushes to the "frame of the top of the chamber used for retaining the oil ha i I i s and grease for the worm wheel land its asso- Other objects will appear as the disclosure ciat e parts is a threaded opening through 5 progresses.- The drawings are intended WlllCll to Insert the sald lubricant. This "65' merely to indicate a possible embodiment of opening is provided with a threaded plug 23. I i

the invention. It is obvious that theneeds Novel I neans are provided for convenient- I of 'manufacture may necessitate certain lyattachlng and detach n [the brush to the- I changes. 7 It is therefore not intended to limlt vertical shaft Gas follows: eyed to the shaft the invention'to the embodiment illustrated 6 is-a U-shaft' element '7 which fits in theflfoI but rather to define such limitations in the holes 8 formed in the base of. the brush 13. appendedflclaimh For amore general under- Between the holes '8 is a central hole 10 as standing of the invention attention is now notedin'Figure 3. This hole is large enough 1 called the drawings. In these drawings like for thebottom shaft head 19 to pass through. I

I reference characters denote I like parts-Between the shaft head9 and the underside 75 I throughout the specificat on. of the brush base is a removable locking Figure 1 is atop view of the device." I lmech'anism,consisting of aslotted plate 18 w Figure 2 is an endviewthereof; I i v and a lever 17 hinged to theplate 18. To

' Figure 3 is a side view partlyin section. fasten thebr'ush in place the loweripart'ofj 1' .30 Figure 4:35 a detail of the clamping means the shaft 6 with the U-shaft element attached' o c i for the brushes, Y, L 'thereto'is passed through the holes .8 and10 a Figure 5 is a section online 5-.'5 of Figrespectively of the'brushbase. The locking "ure 4, I 1 I mechanism is'then Sused to'securely fasten In brief the deviceconsists'of a "motor t'o thebru'sh in place in the followingmanner;

'35 which are geared'two verticalshafts having As noted in'Figure'5 the'plate17 is formedis *atthelower ends attaohedcleaning and 'scrub-' with a slot so that theshaft head 19 can pass 'bing brushes Asrthe motor shaft revolves through. The firsto'peration consists of pass,- 7 i the brushes willrotatetherewith'and thus i'ng' the'shaft head'19throughthe slot of 4 "clean or scrubthe floor. ,The'motor is posithe plate and then moving the mechanism to;

40 tioned between the operating mechanism; the: left so that the plate will rest on ftlie 'o Asboth of the 'operatlng mechanisms are alike shoulder of the head 19. The next operation: i

onlyone will be described. r I I consistsofraisin'g the lever 17 until 'the free Referring now to the drawings'in detail, end is in contact with the bottom of the free .numeral 1 designates the motor provided with end of the plate as shown. "in Figure 4. At

I r h Whichis keyed a m I M68111 the pivoting endof the lever is a cam- 'Now 95 ing with the worm isa worm-wheel 4 keyed when the lever i lifted up theicam surface on the vertical shaft 6. 'QNum'er'al 3 designates bearing against the .bottom'of the brush base i a casing to house the shaft Bandits associate will firmly secure the brush in place against parts. To'avoid friction ,and'noise ,roller rattling or loose motion. bearings 9 are'provided'for the shaft'6.

' L'Numeral 25 designates a attachediillq v to the plate 12. Fastened to this plate is a handle 15 for manually moving the device. At the opposite end of the handle is an elec tric switch 16 to operate the motor. Attached to thebracket 25 are a set of bearings througli whi eh pgss a shaft .having a set f wheel' 4 for moving-"theappzinzitus ar'ou'n%. It will thus be seen that I have prqvided a simple, eflicient and easily operated device 1 for cleaning and serubbingfloofs. With the gavel lem ing means the brushes pan easily e remove "and iepljced with ishing device such as a WaXin'g felt or the like.

15 Having described my invention, I claim:

In a clampfoi lioldinge brush tonal polishingv and surfacing machine," the combination of a drive 'Shaiflen enltnged head at the bQttQin .Qf' S'aid shaft, :1 "pla'tehming a slot g9 tbereinfor engageme t with said drive shaft,

a level: pqo'vided wit ia' .cam pivoted at one and 139 Sfizld plate, said earn bearing against Y t e nder side of said brush, the free end of 7 said lev r. adapted to bearn'gainst the oppo Sitennd of szilid plate. e 1

j TWILLLA G. OBTH. 

